LOS check on retail

[goblin2kx]

Hi, is anyone successfully using Traceline or Intersect to check los between two points with retail? If so I need your help!

There seems to be a number of Intersect functions, this is the Intersect() I'm using right now (build 57388) 0x2181540 (rebased) and GetCurrentWorldFrame() 0x23FB60 (rebased). Calling it like so:

bool check_los()
{
  vec3 p1 = GetPlayerPos();
  vec3 p2 = GetTargetPos();
  vec3 res={0.0};
  float dist = 1;
  int flags = 0x100111; // also tried 0x900151

  p1.z = p1.z + 3;

  bool los = World_Intersect(GetCurrentWorldFrame(),&p1,&p2,&res,&dist,flags);
  return los 
}

I add some random height for now to check if it works, just getting 0 return the whole time - testing with position of target unit and my position + height offset. It looks like the reason maybe this check in Intersect function:

  
v11 = *(_QWORD *)(a1 + 8i64 * *(unsigned int *)(a1 + 32) + 16);
  if ( !v11 )
    return 0;

I checked the address at GetCurrentWorldFrame() + 0x20 and it's NULL... I think I must be calling the wrong Intersect, Any hints are appreciated!

[numerbo]

Maybe @blue_silvi can share his spell LOS function that doesn't use traceline. But here's how you use this one.

11.0.5.57534

		const uintptr_t WORLD_TRACELINE = 0x20244b0;
		const uintptr_t GET_CUR_WORLD_FRAME = 0x238290;

			uintptr_t* result = MEM::INVOKE<uintptr_t*>(
				_GetCurWorldFrame
			);

			char result = MEM::INVOKE<char, uintptr_t*, float*, float*, Vector3*, float*, uintptr_t>(
				_WorldTraceline,
				curWorldFrame,
				from,
				to,
				out,
				distance,
				flags
			);

For the version you referenced it was.
const uintptr_t WORLD_TRACELINE = 0x21813d0;

[goblin2kx]

Wow! I actually had a bug in my code, the original function I posted works just fine as well as the one numerbo posted.
Just to update 578534 of the function i originally posted as address 0x2024620.